Permissions, Privileges, and Access Controls in Linux kernel - CVE-2014-3534
Published: August 1, 2014 / Updated: August 10, 2020
Vulnerability identifier: #VU41433
CSH Severity: High
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber
CVE-ID: CVE-2014-3534
CWE-ID: CWE-264
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: Linux Foundation
Affected software:
Linux kernel
Linux kernel
Detailed vulnerability description
The vulnerability allows a remote non-authenticated attacker to execute arbitrary code.
arch/s390/kernel/ptrace.c in the Linux kernel before 3.15.8 on the s390 platform does not properly restrict address-space control operations in PTRACE_POKEUSR_AREA requests, which allows local users to obtain read and write access to kernel memory locations, and consequently gain privileges, via a crafted application that makes a ptrace system call.
How to mitigate CVE-2014-3534
Install update from vendor's website.
Sources
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=dab6cf55f81a6e16b8147aed9a843e1691dcd318
- http://secunia.com/advisories/59790
- http://secunia.com/advisories/60351
- http://www.debian.org/security/2014/dsa-2992
- http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.15.8
- http://www.osvdb.org/109546
- http://www.securityfocus.com/bid/68940
- http://www.securitytracker.com/id/1030683
- https://bugzilla.redhat.com/show_bug.cgi?id=1114089
- https://exchange.xforce.ibmcloud.com/vulnerabilities/95069
- https://github.com/torvalds/linux/commit/dab6cf55f81a6e16b8147aed9a843e1691dcd318